drm/i915: add power monitoring support

Add power monitoring support to the i915 driver for use by the IPS
driver.  Export the available power info to the IPS driver through a few
new inter-driver hooks.  When used together, the IPS driver and this
patch can significantly increase graphics performance on Ironlake class
chips.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[anholt: Fixed 32-bit compile.  stupid obfuscating div_u64()]
Signed-off-by: Eric Anholt <eric@anholt.net>

1 files changed, 41 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7a726840efa..df7224de0ae 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -838,6 +838,12 @@
 #define CLKCFG_MEM_800                                  (3 << 4)
 #define CLKCFG_MEM_MASK                                 (7 << 4)
 
+#define TR1                     0x11006
+#define TSFS                    0x11020
+#define   TSFS_SLOPE_MASK       0x0000ff00
+#define   TSFS_SLOPE_SHIFT      8
+#define   TSFS_INTR_MASK        0x000000ff
+
 #define CRSTANDVID              0x11100
 #define PXVFREQ_BASE            0x11110 /* P[0-15]VIDFREQ (0x1114c) (Ironlake) */
 #define   PXVFREQ_PX_MASK       0x7f000000
@@ -976,6 +982,41 @@
 #define   MEMSTAT_SRC_CTL_STDBY 3
 #define RCPREVBSYTUPAVG         0x113b8
 #define RCPREVBSYTDNAVG         0x113bc
+#define SDEW                    0x1124c
+#define CSIEW0                  0x11250
+#define CSIEW1                  0x11254
+#define CSIEW2                  0x11258
+#define PEW                     0x1125c
+#define DEW                     0x11270
+#define MCHAFE                  0x112c0
+#define CSIEC                   0x112e0
+#define DMIEC                   0x112e4
+#define DDREC                   0x112e8
+#define PEG0EC                  0x112ec
+#define PEG1EC                  0x112f0
+#define GFXEC                   0x112f4
+#define RPPREVBSYTUPAVG         0x113b8
+#define RPPREVBSYTDNAVG         0x113bc
+#define ECR                     0x11600
+#define   ECR_GPFE              (1<<31)
+#define   ECR_IMONE             (1<<30)
+#define   ECR_CAP_MASK          0x0000001f /* Event range, 0-31 */
+#define OGW0                    0x11608
+#define OGW1                    0x1160c
+#define EG0                     0x11610
+#define EG1                     0x11614
+#define EG2                     0x11618
+#define EG3                     0x1161c
+#define EG4                     0x11620
+#define EG5                     0x11624
+#define EG6                     0x11628
+#define EG7                     0x1162c
+#define PXW                     0x11664
+#define PXWL                    0x11680
+#define LCFUSE02                0x116c0
+#define   LCFUSE_HIV_MASK       0x000000ff
+#define CSIPLL0                 0x12c10
+#define DDRMPLL1                0X12c20
 #define PEG_BAND_GAP_DATA       0x14d68
 
 /*